▎ 摘　　要

NOVELTY - Smart respiratory face mask, comprises: an antimicrobial textile substrate adapted to be wrapped around the user's respiratory orifices, where the substrate adapted to restrict microbes and particulate matter from entering inside the body of user; a sensor device detachably attached to textile substrate, where the sensor device comprises an inner housing comprising an inner coupling element; an outer housing adapted to be aligned with the inner housing from a second side of the textile substrate, where the outer housing comprises an outer coupling element, and the outer coupling element is adapted to be detachably coupled with the inner coupling, thus enabling the sensor device to be either attachable or detachable to textile substrate; a relative humidity (RH) sensing element made by printing a reduced graphene oxide (rGO) ink on a PCB substrate; a communication module attached to the RH sensing element; and a data processing module operatively coupled with communication module. USE - The face mask is useful for warning by a user for detection of respiratory parameters and other mask characteristics, e.g. respiratory rate, mask fit and mask saturation (claimed) by using only single sensing element. ADVANTAGE - The face mask: provides ulterior protection to the user; is a smart mask with a detachable sensor, capable of monitoring, detecting, and displaying the user's respiratory parameters; can be worn by the user for long hours and enables free activity of the jaw; provides easy to operate and cost-effective mask; and possesses sensing element which is extremely sensitive to moisture adsorption and desorption characteristics, reduces the response time for detecting breathing patterns, can be configured at anywhere in the mask, and get the same data related to the respiratory parameters and the other mask characteristics, and also detects the usability of certain reusable masks and notifies the user via the smart held device. DETAILED DESCRIPTION - Smart respiratory face mask, comprises: an antimicrobial textile substrate adapted to be wrapped around the user's respiratory orifices, where the substrate adapted to restrict microbes and particulate matter from entering inside the body of the user; a sensor device detachably attached to the textile substrate, where the sensor device comprises an inner housing comprising an inner coupling element, and the inner housing adapted to be attached to a first side of the textile substrate; an outer housing adapted to be aligned with the inner housing from a second side of the textile substrate, where the outer housing comprises an outer coupling element, and the outer coupling element is adapted to be detachably coupled with the inner coupling, thus enabling the sensor device to be either attachable or detachable to the textile substrate; a relative humidity (RH) sensing element made by printing a reduced graphene oxide (rGO) ink on a PCB substrate, where the sensing element comprises a rGO ink adapted to adsorb and desorb moisture for sensing breathing pattern of the user based on the adsorption and the desorption of the moisture; a communication module attached to the RH sensing element, where the communication module is configured to the substrate; and a data processing module operatively coupled with the communication module, where the data processing module is adapted to compute the sensed breathing pattern data to detect the respiratory parameters and mask characteristics, the ink comprises rGO doped with at least one metal oxide in a ratio of 70-99.9 to 0.1-30 wt.%, respectively, and the rGO doped with the metal oxide comprises chemical elements comprising carbon, tin, oxygen in an atomic ratio of 1: 0.05-0.3: 0.1-0.7, respectively. An INDEPENDENT CLAIM is also included for detecting respiratory parameters and other mask characteristics, e.g. respiratory rate, mask fit and mask saturation by the smart respiratory face mask. DESCRIPTION OF DRAWING(S) - The figure illustrates perspective view of a smart respiratory mask with a relative humidity sensing element. 101Textile substrate 102Sensor device 104First side 106Second side 1000Smart respiratory face mask